Posts Tagged ‘fields’
Tricorder designs go open source: can detect magnetic fields, reveal Trekkies (video)
Author: Jade Kim
We’re still working on our own plans to grab that $ 10 million Tricorder X-Prize from Qualcomm and our progress has just been given a shot in the arm from Dr. Peter Jansen, who’s released the designs for his tricorders. Making all the specifics open source, his Mark 2 model runs on Linux, while the hardware includes an ARM Atmel microcontroller squeezed into a clam-shell with two OLED touchscreens. Schematics, board layouts, and the firmware is all available at the source below and also includes the initial proof-of-concept device. The tricorders need six AAA to run and include sensors for temperature, humidity, atmospheric pressure, ambient light, distance and even magnetic fields. Dr. Jansen’s hope is to make scientists out of everyone — including your kids. That is, right after they ask you what Star Trek is.
Tricorder designs go open source: can detect magnetic fields, reveal Trekkies (video) originally appeared on Engadget on Thu, 29 Mar 2012 17:51:00 EDT. Please see our terms for use of feeds.
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Magnetic fields shut down speech, permit love songs (video)
Author: Stefanie Jenkins
You already know the strange powers of Stephin Merritt, but today we’re talking about real magnetic fields. Powerful electromagnets, it turns out, can do remarkable things to the brain — in this case, prevent a volunteer from reciting “Humpty Dumpty.” The carefully directed magnets temporarily disrupt the brain’s speech centers; the volunteer can still sing the rhyme using different areas of the brain, but simply can’t overcome a series of stammers when trying to merely recite it. Of course, it’s not all mad scientist applications: the UK team experimenting with transcranial magnetic stimulation (TMS) thinks it can help us understand and treat migraines (as we’ve seen before with the Migraine Zapper), depression, and ADHD, among other ailments. But improving physical well-being doesn’t make for nearly as entertaining media — see the British inflict some involuntary quiet time in the video above.
Magnetic fields shut down speech, permit love songs (video) originally appeared on Engadget on Thu, 14 Apr 2011 17:56:00 EDT. Please see our terms for use of feeds.
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Strained graphene leads to pseudo-magnetic fields, bends physics even further
Author: Stacey Cook
Man, if only this had been discovered before Ariadne was tasked with building impossible dreams. A team of scientists caught high-fiving over at Lawrence Berkeley National Laboratory have a new and riveting announcement to share, and it revolves around our old and trusted friend, graphene. This go ’round, the self-proclaimed “extraordinary form of carbon” is being stressed to its max, but not without good reason. Thanks to inquisitive minds and a “stroke of serendipity,” a research team was able to create magnetic fields in excess of 300 tesla by simply straining graphene in a certain way. For physicists, the discovery is a dream come true, particularly when you realize that magnetic fields in excess of 85 tesla were practically impossible to come across in a laboratory setting. The benefits here? It’s honestly too early to tell, but gurus in the field are already suggesting that the “opportunities for basic science with strain engineering [are] huge.” Something tells us Magneto would concur.
Strained graphene leads to pseudo-magnetic fields, bends physics even further originally appeared on Engadget on Mon, 02 Aug 2010 18:33:00 EDT. Please see our terms for use of feeds.
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